Re: [PATCH v4 13/14] media: vimc: cap: Add support for multiplanar formats

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On 4/25/19 10:22 PM, André Almeida wrote:
> Adapt vimc-capture to support multiplanar formats, copying
> each plane to the correct buffer.
> 
> Signed-off-by: André Almeida <andrealmeid@xxxxxxxxxxxxx>

Acked-by: Helen Koike <helen.koike@xxxxxxxxxxxxx>

> ---
> Change in v4:
> - Move variables to inside the for loop
> - Change `plane_size` type from `unsigned int` to `size_t`
> 
> Change in v3:
> - Adapt to new vimc_frame
> 
> Change in v2: none
> 
>  drivers/media/platform/vimc/vimc-capture.c | 16 ++++++++++------
>  1 file changed, 10 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
> index d9dae5b3a0bf..932d622d56ca 100644
> --- a/drivers/media/platform/vimc/vimc-capture.c
> +++ b/drivers/media/platform/vimc/vimc-capture.c
> @@ -523,7 +523,7 @@ static struct vimc_frame *vimc_cap_process_frame(struct vimc_ent_device *ved,
>  	struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
>  						    ved);
>  	struct vimc_cap_buffer *vimc_buf;
> -	void *vbuf;
> +	unsigned int i;
>  
>  	spin_lock(&vcap->qlock);
>  
> @@ -545,13 +545,17 @@ static struct vimc_frame *vimc_cap_process_frame(struct vimc_ent_device *ved,
>  	vimc_buf->vb2.sequence = vcap->sequence++;
>  	vimc_buf->vb2.field = vcap->format.fmt.pix.field;
>  
> -	vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0);
> +	/* For each plane, copy the pixels */
> +	for (i = 0; i < vimc_buf->vb2.vb2_buf.num_planes; i++) {
> +		void *vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, i);
> +		size_t plane_size = frame->fmt.plane_fmt[i].sizeimage;
> +
> +		memcpy(vbuf, frame->plane_addr[i], plane_size);
>  
> -	memcpy(vbuf, frame->plane_addr[0], vcap->format.fmt.pix.sizeimage);
> +		/* Set it as ready */
> +		vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, i, plane_size);
> +	}
>  
> -	/* Set it as ready */
> -	vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0,
> -			      vcap->format.fmt.pix.sizeimage);
>  	vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE);
>  	return NULL;
>  }
> 



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